novice forensic medicine

Chapter 11 Is she the murderer?
Zhou Ning nodded, handed the fingerprint comparison report to Xu Dayuan, and then picked up the camera.

"This is the result of fingerprint comparison. The interior of the Volkswagen CC car has been carefully cleaned, and only traces of fingerprints with threaded gloves were found. However, many fingerprints were found on Nissan cars, including the ex-boyfriend Wang Fuhao. Fingerprints and palm prints, which proves that Wang Fuhao said that the car-changing competition is true.

As for the Volkswagen CC, we found traces of changing windshields, bumpers, headlights, and tires, although the murderer erased these evidences.

However, the luminol reagent on the hood was positive, and the shape was exactly the same as the bloodstain on the intercostals of the deceased. Zhao Xinli had already sent the bloodstain on the wiper cover, and it was estimated that the result would be available in three hours.

Although there was no result, I am [-]% sure that it was Yang Yufei who drove the Volkswagen CC into the dead Su Manli. As for the murderer who stabbed Su Manli, Xu Dalai has to confirm this.

However, it is undeniable that if the speed of the car exceeds 150 mph in the early morning and a person appears at the exit of the bridge, he may not be able to see clearly whether he hit a person or an animal. "

Xu Dayuan dropped his hat, slapped Zhou Ning's shoulder with his palm, and stared at Zhou Ning with bloodshot eyes.

"Forensic doctor Xiao Zhou, you are my lucky general. This evidence can beat them to death. No one can find it if you look for it. Then I will have the confidence to try it. I will give you credit when the case is over. .

By the way, that girl named Wenxuan is on her way, and you will help check that bag later. "

Zhou Ning nodded, as long as he can solve the case, as for how to interrogate, this is not his concern, after all, the case is clear, but he is still very interested in that girl, she is very hot, and she is so decisive, it is really unusual.

"The girl's identity has been checked?"

Xu Dayuan smiled.

"You kid is also very gossip, let me tell you, her name is Sun Wenxuan and she is also a student of the health school, she is in the same class as Su Manli, and her father is in the Lihua Group.

As for the others, you can guess without interrogation. The young man was jealous because he wanted to get close to Yang Yufei. He felt that Su Manli was an eyesore, so he didn't know if the murder weapon could be found so smoothly. "

Zhou Ning blinked, thinking of the small hole on the purse.

"Let's talk about it later, the girl always wants to maintain her image in front of the person she likes."

At this moment, the sound of the car door slamming came from outside the window, looking downstairs, several people brought Sun Wenxuan, and the girl kept crying, softly shouting:

"Why am I being arrested? What crime have I committed?"

Xu Dayuan grabbed the fingerprint comparison report, pointed to the door towards Zhou Ning, and then left.

Zhou Ning let out a long breath. Seeing half a pack of Su cigarettes on Liu Fayi's table, he took out one and lit it. He was not addicted to cigarettes, and he just smoked for fun at first, but now he really needs a little mental relaxation.

From yesterday morning to now, the 24 hours are really thrilling, and it can be said to be more exciting than the 26 years he has lived before.

The sounds from downstairs fade away until the cigarette is exhausted and the office door opens again.

Xiao Liu poked his head and waved towards Zhou Ning.

"Forensic doctor Xiao Zhou, Xu Da asked me to call you over to check the suspect's belongings."

Zhou Ning nodded, put on a mask, gloves and hat, carried a survey box and a camera, and followed Xiao Liu to the interrogation room on the first floor. This was the first time he had come down here, and the door was still equipped with a combination lock.

Open the door and the soft blue wall sticker on the wall is very conspicuous with the iron chair.

Sun Wenxuan was sitting on the chair, her chest heaving and falling, the tears on her face were still wet, but she didn't speak.

Xu Da just waved his hand, and Zhou Ning walked to Xu Da's table, on which was the leather bag, which was expensive just by looking at the brand.

"Check her purse, it has been determined that it is her personal property."

Zhou Ning knew that this sentence was for Sun Wenxuan, but Sun Wenxuan struggled to say it.

"My bag is very expensive, don't move around!"

This sentence is very weak, Zhou Ning raised the bag, looked at the small hole below, first took a photo of the exterior, then opened the black knitted lining inside the bag, and illuminated it with a flashlight, only then did he find the damaged part inside .

It's obviously stiff here, and you don't need to guess that it's a trace of blood staining. Zhou Ning took another photo, then poured out the contents, pinched the bag with both hands up and down, searched to the bottom position, and a long strip of traces appeared.

Zhou Ning paused, knowing from the appearance that this was the murder weapon, opened the bag again, tore off a zipper on the side of the bag, and a flat-head screwdriver with a green plastic handle appeared in front of his eyes.

The screwdriver was clean, but blood was visible between the handle and the metal shaft.

I really don't know whether to praise Sun Wenxuan for being smart or stupid. It's right to take away the murder weapon and let the police investigation stalemate, but shouldn't this thing be dealt with earlier and saved for the New Year?

No need to ask, Xiao Liu has already moved over with an evidence bag.

Zhou Ning was not in a hurry. He took a fingerprint on the handle of the screwdriver, a very clear thumbprint, and picked up the fingerprint sampled by Xu Da on Sun Wenxuan's desk. There was no need to use the comparison system.

Then he threw the screwdriver inside, took a swab sample from the hole on the outside of the leather bag, and then cut a piece of knitted fabric from the corresponding part on the inside, put it all together, and then looked at Xu Dayuan.

"Xu Da finished sampling. The fingerprints on the screwdriver belonged to Sun Wenxuan. It's just that the blood test is very fast, and the results can be obtained in three hours. However, the length and width of the murder weapon match the traces of Su Manli's fatal wound."

Xu Dayuan nodded, with an expression of appreciation on his face. For Sun Wenxuan, this sentence was the last straw that overwhelmed her. After all, all hopes were shattered.

Yang Lihua is capable of protecting her son, but what is she?
It was too late to avoid suspicion, at least Sun Wenxuan's appearance saved her son from a murder charge.

Zhou Ning came out with his things, exhaled, and looked at Liu Yong.

"Did you hear Xu Da's order, are you taking me to the county hospital?"

Liu Yong nodded.

"Come on, I just got my driver's license and there are cars in the team."

The two happily got into the car and drove all the way to the county hospital. Zhao Xinli was already waiting in front of the door. After all, Zhou Ning was not familiar with the procedures here and had already contacted him on the way.

Seeing Zhou Ning getting out of the car wobbly, Zhao Xinli hurried up to him, grabbed Zhou Ning's arm, and took the physical evidence box.

"What's the matter?"

Xiao Liu looked embarrassed, scratched his head and said embarrassingly.

"That's right. It's just that Xiao Zhou's forensic doctor is a little motion sick. It's okay!"

Zhou Ning shook his head, patted his chest to relax and straightened up.

"Block him, this guy is terrible at driving. He drives fast and slow on the road, like a rocking car. The more he crosses the intersection, the faster he speeds up, and he turns left and right. I'm a person who doesn't get dizzy in a boat with eight winds. !"

Zhao Xinli grinned and kicked Xiao Liu.

"You kid is tired of working. Xiao Zhou's forensic doctor is expensive now. If you don't have the skills, go to practice. Don't come out and show yourself. You are here waiting for me to deliver samples."

Xiao Liu hurried over to help Zhou Ning, and Zhao Xinli ran into the building on the east side of the county hospital.

Zhou Ning drank some water and patted Xiao Liu.

"Okay, take it easy, Liu Yong, go back first, I'll wait for the results, and go back with Zhao Xinli."

Liu Yong didn't talk nonsense, and drove away.

Zhou Ning bought some fruit and a box of milk at the supermarket in front of the county hospital.

Zhao Xinli also came out at this time. Seeing the things in his hands, he naturally understood what he was going to do, and glanced at his watch.

"The first batch of tests is coming out soon. The person who tested them said that the blood comparison is very fast. I'll go with you to see Forensic Doctor Liu."

The two went straight to the bone, Liu Fayi kept a straight face on purpose, but his wife's attitude was much better than last time, and Zhou Ning was always very decent in terms of human relations.

Forensic Liu asked about the progress of the case. He didn't expect them to have the results so soon. Although they still need to wait for the test, the work of the forensic doctor is basically over. You must know that this is a homicide case, which made him very excited.

It wasn't until Zhao Xinli received a call from the test that the two got up to leave, and Liu Fayi's daughter-in-law personally sent Zhou Ning and the others out.

After receiving the test results, the two quickly returned to the forensic office, and Xu Dayuan sat at the desk and waited.

On the way, Zhou Ning had already checked the results. The two bloodstains, screwdriver, leather bag, and lining on the Volkswagen belonged to the deceased Su Manli, so he handed over the report to Xu Dayuan.

Zhou Ning asked curiously:
"Xu Da Sun Wenxuan explained?"

Xu Dayuan nodded, sighed and let out a smoke ring.

"Well, she admitted that she stabbed Su Manli."

Looking at Xu Dayuan's appearance, Zhao Xinli noticed something was wrong.

"What's wrong with the boss, isn't it good that the suspect admits, we can close the case now!"

Xu Dayuan rolled his eyes.

"You know what, although Sun Wenxuan admitted that she stabbed Su Manli, but it was Yang Yufei's instigation. Yang Yufei thought that Su Manli had an affair with everyone, so he designed this car."

Zhou Ning and Zhao Xinli glanced at each other, both of them froze in place.

(End of this chapter)